response vs riposte

response and riposte both are nouns.

Word	Noun	Adjective	Verb	Adverb
response	Yes	No	No	No
riposte	Yes	No	Yes	No

As nouns, riposte is a hyponym of response; that is, riposte is a word with a more specific, narrower meaning than response:

response: the speech act of continuing a conversational exchange
riposte: a quick reply to a question or remark (especially a witty or critical one)

Other hyponyms of response include counterblast, non sequitur, comeback, counter, rejoinder, replication, retort, return, echo, answer.

response (noun)	riposte (noun)
a bodily process occurring due to the effect of some antecedent stimulus or agent	(fencing) a counterattack made immediately after successfully parrying the opponents lunge
the manner in which an electrical or mechanical device responds to an input signal or a range of input signals	a quick reply to a question or remark (especially a witty or critical one)
the speech act of continuing a conversational exchange
a statement (either spoken or written) that is made to reply to a question or request or criticism or accusation
the manner in which something is greeted
a phrase recited or sung by the congregation following a versicle by the priest or minister
a result

response (verb)	riposte (verb)
	answer back
	make a return thrust